Oil-burning range



May 20 1924.

G. T. JOCKERS on. suniune RANGE Filed April 30. 1923 5 Sheets-Sheet 1 G.T, JOCKERS on" BURNING RANGE Filed April 30. 1921's s Sheets-Sheet 2 May20, 1924. 1,494,843

e. 'r. JOCKERS bIL BURNING RANGE Filed April 30. 1923 5 Sheets-Sheet 5Mum. .m

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l I I May 20,1924; 1,494,843

7 ca. "r. JOCKERS I OIL BURNING RANGE Filed April 50. 1923 5Sheets-Sheet 5 1 i a 1: 5/, I/ 4/ v T z a T g j f 3 a i Patented May 20,1924.

UNITED STATES enoaen r. JOCZKERS, or BROOKLYN, N YORK.

OIL-BURNING RANGE.

To all whom it may concern:

Be it known that I, GEORGE T. Joonnns, a citizen of the United States,and a resident of the borough of Brooklyn, county of Kings, and State ofNew York, have invented certain new and useful Improvements in OilBurning Ranges, of which the following is a specification suflicient toenable others skilled in the art to which this inven tion appertains toutilize the same.

My improvements relate to heating and cooking ranges generally, in whichthe fuel used is atomized oil injected into a fire box in a manner Wellknown in the prior state of the art,my invention being the result ofexperimental investigation undertaken for the purpose of attainingperfect fuel combustion and the effective utilization of the fullcaloricvalue thereof; and consisting in the specific construction,combination, and arrangement of parts and appurtenances described andclaimed, whereby original and important results are attained, all ashereinafter fully set forth.

In the accompanying drawings I eXem- V plify a practical embodiment ofthe essen tial features of my invention, in a duplex type of range,although I do not limit myself to the identical form and constructionshown in this connection in so far as minor details are concerned,'sincefmodifications, and equivalent mechanical expedients, may beresorted to with like effect, and without departing from the spirit andintent of my invention in this respect.

With this understanding,

Fig. 1, is a plan or top view of my improved ,oil burning range;

Fig. 2, is a front elevation thereof;

Fig. 3, is a'horizontal section taken upon general plane of line 38,Fig. 2;

'Fig. 4:, is a vertical section taken on general plane ofline 4+4, Fig.1, being vir-- tually. an elevation of the 'range with the front plate,etc., thereof, omitted;

Fig. 5, is a central vertical section through the body of the range andtaken upon general plane of line 55, Figs. 1 and 2;

Fig. 6, is a vertical section taken upon plane of line 66, Figs. '1 and2; I

Fig. 7, is a vertical longitudinal section taken upon plane of line 7 7Figs. 1 and 3;

r Fig. 8, is a frontal elevation in detail, upon a larger scale, of theoven doors and appurtenances, the figure being broken away part;

Application filed April 30, 1923. Serial No. 635,470. 1

.Fig. 9, is a sectional detail taken upon plane of line 9-9, Fig. 8;

Fig. 10, is a perspective View of the drain tray,

, Fig. 11, is a horizontal section taken upon plane of line 1111, Fig.7; j V

Fig. 12, is a horizontal section taken upon plane of line 12 -12, Fig.7.- Fig. 13, is a diagram illustratingtheopen oven door support inconjunction with Figs. 8 and 9. v I herein show and describe my new andimproved oil'burning range as adapted par ticularly to the-requlrementsof use infshlp galleys, although the main features in the constructionand arrangements of parts are for hotels, restaurants, &c.

equally adapted for use for cooking ranges The fire brick b, or otherrefractory matecasing serving as an extraneous heating and cookingsurface,'-a guard rail R,eXtend-ing around said top plate 0', saidguardrail R, belng provided with transverse bars 1',

r, and the whole rail functioning to retain' cooking utensils, etc;,positionedupon the top plate. 0, an essential precaution 1n the case ofmarine ranges. h, is a-hand rail such as usuallyprovided on theupperfront portion of such ship ranges.

In the duplex and bi-laterally symmetrr cal construction andarrangements of parts shown herewith the combustion chamberyt,

' Figs. 5 and 7, off'the drawings. The bottomfofthe combustion, chambera, consists of a block b, of fire brick, in which is formed a forwardlyinclined gutter b", the floor of which leads-to a drain piped, throughwhich surplus unconsumed oil is drawn oft, thereby obviatingall dangerof explosion and preventing waste of fuel;

' perfect gaseousness preparatory to the 6X- of the ovens opposite tothe combustion chamber a, and its direct vertical flue a, as shown moreparticularly in Fig. 7 of the drawings; and both'these sideflues a a andsaid direct flue a, lead to and communicate with horizontal flue spacesa a, above the ovens V, V, and beneath the top plate 0', which top fluespaces a, a communicate indirectly with the stack S, through which theproducts of combustion are finally discharged. These upper flue spacesa*, a are shown connectively and collectively more particularly in Fig.8, of the drawings, in which 6 Z2 represent fire brick baflles whichinsure an equitable distribution of the products of combustion over thetopsof the ovens V, V, as said products of combustion pass to the stackS.

The fuel oil is injected in the form of spray into the combustionchamber a, through a nozzle n, preferably of the type described in myLetters Patent No. 1,450,000.

issued March 27th, 1923, or by any equivalent means. r

'6 is'an air inlet passage in the front of the range .positioned abovethe oil injecting means, and provided with one or more'doors 0 0 orequivalent means for regulating the admission of air to the combustionchamber a, to prescribe the quantity of oxygen essential to insure theincandescence and-reduction of the nascent oil spray in the saidcombustion chamber to treme of such products of combustion into theflues on their way to the discharge stack S. Ignition of the fuel withinthe combustion chamber may be effected through said air inlet 5 orthrough the top of the direct flue a, by the removal of the centralcover 0 on the top plate 0 as will i be understood by referencemore'particularly to Fig. 5, of the drawings.

Said; central cover 0 rests on a concentrio annular cover 0 in turnsupported on a removable central plate 0 which 'is flanked by two othertop platesc 0. The

' openings closed by the cover plates 0 and 0*, are provided for theaccommodation of pots, pans, etc., to be subjected to the direct heat ofthe main fine a; andlthese 7 larger cover platesc 0 and a, give accessto the top fines for cleansing purposes, or for the accommodation ofcooking utensils of larger size, accordingf to circum stances andrequirements of use. Obvious- 1y, theflankting ,top plates 0 0, may beformed, if desired, with circular openings for' pots, etc, closednormally by suitable covers as 'in the case of the central top coverplate a. V r

*E'QE, are compartments in the casing below the ovens V, V, closednormally'by doors e,- e, and whichspaces may be'utilized for-the purposeof the temporary storage of plates, dishes, or cooking utensils which itis desired to keep warm, said spaces E, E, performing a double functionin that they not only act asv heating compartments as above stated, butalso act as non-conducting areas to prevent loss of heat, and keep thefloor cool.

The top, bottom and sides of the oven shells are made in one piece tofacilitate replacement when desirable, in which case it is simplynecessary to temporarily remove the upper brick work in order to removean old shell and substitute a new one.

The doors V, V, of the ovens V, V, are pivotally supported at theirlower edges by trunnions c, a, mounted in bearings in side brackets o,v, on the door frames c c as shown more particularly in Fig. 8; and theyare held closed normally by slidable bolt bars a" which engage withhooks 41 on the upper part of said door frames c '0 as indicated in bothFigs. 8 and 9, of the drawings, o representing lifters by means of whichthe doors may be latched or unlatched. In order to support the doorswhen open, I provide side bracket arms h, h, fulcrumed in'socket pieces0 0 on the front plate c of the casing 0, the outer ends of said bracketarms h, it, being formed with lugs h, h, which fit in shouldered grooves0*, 11*, in the side members of the doors V, V, as will be understood byreference more particularly to the aforesaid Figs. 8 and 9, of thedrawings. Thus when a door is opened and lowered into horizontalposition 'asindicated diagrammatically in Fig. 13, the bracket arms h,it, will act asbraces to support said door in such position.

It is to be understood that this special form of oven door V,and'articulative sup ports, forms no part of my present invention, thedistinctivefeature of which is the novel construction and arrangement ofthe; range fiues, and accessories relating thereto, whereby the productsof combustion are. caused to pass under, around, and over'the ovens, ina manner essentially direct to the' discharge stack, but never in areverse or downward direction as'in the prior state of the art.

By my method of insuring a continuous upward and forward passage of theprodnets of combustion as related to the discharge stack, and around andon all sides of the oven, I attaina relatively high degree oftemperature in the oven with a minimum amount of fuel oil, practical andcomparative testshaving demonstrated the fact that the use of a pint ofoil in my improve'd structure of oil burning range will insure resultsequivalent to those attained byan' expenditure of two gallons of'oil inranges of this class; as heretofore constructed. Fur thermore, I attainthis economical desid eraturn with greater safety because leakage andseepage of oil is eliminated, with all danger of extraneous fire orexplosion; and in this connection it may be mentioned also thatexplosion of oil within the combustion chamber is avoidedby the drainingoff of all drip or surplus oil that might otherwise collect in thebottom of said combustion chamber.

It is to be understood that while I herein illustrate the essentialprinciples of my invention as embodied in a twin oven range,"

the same may be utilized for a single oven range with like results,distribution of heat to oven space is attained in either case, as wellas to the heating surfaces constituting the top of the range.

Furthermore, it is to be understood that by the term fire-brick asherein used I mean to designate any refractory material knowncommercially as by that name, or any equivalent thereof, said bodystructure of refractory material being indispensible in a range of thischaracter in which the intense heat generated by oil-spray combustionwould otherwise result in a speedy deterioration and destruction of therange, considered in its unitary sense.

What I claim as my invention and desire to secure by Letters Patent is,

1. A substantially all fire brick range embodying afire-brick enclosingstructure with an oven therein, a combustion chamber beneath the oven, avertical flue. and lateral horizontal flues around the oven, the bottomof said combustion chamber comprising a fire brick block withforwardly-inclined gutter, the upper wall of the oven having horizontalflue spaces, and fire brick battles to insure distribution of theproducts of combustion over the top of the oven.

2. An oil burning range comprising a fire box and means for injectingfuel thereto,

in that an equitable a flue extending upwardly from the fire box, theback wall of said flue and box being formed with a gradual curve to thetop of the structure and extending approximately half the distance fromfront to rear of the range.

3. An oil burning range with a fire box and a flue extending to theupper front part of the range, horizontal extension flues 'at each sideof the upper end of said first flue, and baflles forming the back ofsaid second flue and extending outwardly behind the first flue.

4. An oil burning range with a fire box and a flue extending to theupper front part of the range, horizontal extension flues at each sideof the upper end, of said first flue,

baflles forming the back of said second flue,

and extending outwardly behind the first flue, and other baffles atright angles to the first-named baffles.

5. An oil burning range with a fire box and a flue extending to theupper front part of the range, horizontal extension flues at each sideof the upper end of-said first flue,

baffies forming the back of said second flue and extending outwardlybehind the first flue, and twin ovens in proximity to the said flues. V

6. An oil burning range with afire box and a flue extending to the upperfront part of the range, horizontal extension flues at each side of theupper end of said first flue, baffles forming the back of said secondflue and extending outwardly behind the first flue, other baflies atsubstantially right angles to the first-named baflies, and twin ovens inproximity to the said flues.

GEORGE T. J OCKERS.

Witnesses:

MARGARET K. HANSTEIN, GEO. WM. MATT.

